Cañal definition

(1) Long and narrow strip of water made for boats or for irrigation

(2) A bodily passage or tube lined with epithelial cells and conveying a secretion or other substance

"The tear duct was obstructed"

"The alimentary canal"

"Poison is released through a channel in the snake's fangs"

(3) (astronomy) an indistinct surface feature of Mars once thought to be a system of channels; they are now believed to be an optical illusion

(4) Provide (a city) with a canal